CM_1981_H_1.pdf (1.503Mb)

(1)

International Council for the Exploration of the Sea

Herring and sprat.

PELAGIC FISH COMMITTEE by

O.J. Østvedt 1980

Belgium (P. Hovart)

c 1981/H:l Administrative Report

No rnarket sampling of pelagic fish has been carried out in 1980.

Research vessel surveys with bottorn trawl on the two juvenile species were continued as given in the table below. The research is lirnited to length rneasurernents.

Research vessel surveys.

Area IV c

Belgian coast

Season Objectives

Whole year Recording dens i ties Monthly intervals herr ing and sprat.

Canada (G.H. Winters)

of irnrnaturE

All research relevant to this cornrnittee has been reported to ICNAF/NAFO.

(2)

Al"ea i l Div.

IV a

Div.

IV b

l

^Div.^{IV c}

Skager-

l

^rak

Katte-

l

p:at

Øre- sund

Danish Fiords

- 2 - Denmark (K. Popp Madsen) IlerrinR;

.,_

Type of No of samples No Sea son fish

Research Market Measured l

2 3 4 l 2 3 4 l 2 3 4 l 2 3 4 l 2 3 t,

l 2 3 4 l 2 3 4

vessel

Hixed 2 3

11 o o

11 6 34

11 19 27

t1ixed 24 808

11

11 21 887

11 30 690

t1ixed 8 12

11 o o

l'!ixed 13 194

11 17 338

tt l 38 2569

11 14 353

l

tv!ixed 15

l

²⁷ ³⁴²¹

l

11 21 688

11 11 17 3315

tt 38

l

1051

l

^t1ixed11 ²o ²²⁰o

tl l 117

li 2 293

Mixed o o

11 8 1360

11 o o

11 2 325

The RV ¹¹Havfiskenu participated in the International Young Herring Survey Fe- bruary-March in the Kattegat-Skagerrak area.

l !

l l

l

l l l

l

l l l

The FS "Lars A. Kruuse" in the Danish- Swedish Herring Acoustic Survey Septem- ber in the Kattegat-Skagerrak area.

of fish

Ag ed Examined racially

3 o

o o

34 34

25 o

808 97

887 o

621 o

12 o

o o

194 l o ⁱ

l l

338 192

2568 152

363

l

^o

l

3421 ₆₈₈

l

¹⁷³⁸ ⁱ

l

93 1328 1158

l

1050 522

220 220

o o

117 117

293 293

o o

1360 1360

o o

325 325

(3)

- 3 - Denmark (continued)

Area Sea son Type of No of samples No of fish

f

fish Research Harket Measured Ag ed Examined ^!

vessel racially ~

l

~·J of ^401:J l t-1ixed l 145 145 o

4 ^li l 176 176 o _j

tiorth

3 l'-1ixed

l

^l ¹⁸⁷ ¹⁸⁷ ^o

^J

Sea

Area Season 'Type of No of samples No of' fish

,fish Market ^l

l

!

^Research !vleasured

l

^{Ag ed} ^Examined

vessel racialJ.y

- ^l ~Mixed ⁴⁵ ⁴⁸⁵⁵ ⁴⁶³⁹ ^o

Div. 2 ¹¹ 4 6 6 o

IV b 3 ₄

!

_l ¹¹11 ¹⁸30 ¹⁵⁶¹3160 ¹⁴⁵⁷2690 ^oo

^l

'

Div. l ;Mixed 24 2669 1880 o

2

l

11 o o o o

IV c

3 ¹¹ o o o o

4 ¹¹ o o o o

l

l ~1ixed

⁸ ¹¹²⁴ ¹¹²⁴ ^o

Div. 2 ¹¹ 7 387

3731

^o

IIIa 3

l

¹¹ ¹⁵ ²⁰³⁷ ²⁰³⁷ ^o

North 4

l

¹¹ ⁶ ⁵⁶⁹ ⁵⁶⁹ ^o

l t>lixed 15 16 3570 3570 o

l

Div. 2 ¹¹ 7 921 921 o

IIIa 3 ¹¹ 12 4 7374 2506 o

South 4 ¹¹ lO 1278 1278 o

Blue Hhiting

r

No of samples No of fish

Area Season Type of Research l Market t-1eas u red Ac:;ed! Examined

fish vessel

l

^racially

l Mixed 13 611 l _o

l

^o

Div. 2 ¹¹ 3 221 o o

IV a 3 ¹¹ l l o o

4 ¹¹ 2 2 o

l

^o

l Mixed 4 244 o

j

o

Div. 2 ¹¹

l

ô ô ô ô

VI a 3 ¹¹

t

l 3 o o

4 ¹¹ o o o o

l Mixed o o o

l

^o

Div. 2 ¹¹ 5 144 o o

IIIa 3 ¹¹ lO 314 o ^l o

North 4 ¹¹ 5 122 o l o

J

(4)

- 4 -

Denmark, (Faroes) . (S.H. i Jakupsstovu)

Blue Whiting (Micromesistius poutassou) Research vessel surveys

Area Season objectives

Faroes January-March experimental

w.

of

fishery

British Isles April-June acoustic abundance estimates, miqrations routes-

Sampll.nq

Area Season no of sample no of fish no of

research market measured aged vessel

Faroes I 32 5478 400

w.

of

British Isles II 6 1171 701

Faroes II l 186 86

Herring (Clupea harengus) Sampling

research tmarket measured age-a

'iTP~~p l

Faroese fjords l l 100 100

-

³ ² ³⁷⁶ ¹⁶⁸

-

⁴ ^l ¹⁸ ¹⁸

Mackerel (Sdomber scombrus)

research mark et measured aged vessel

VIa I 8x 847

IIa III l 61 61

Vb III l 58 58

VIa IV l 100 100

X sampled on board one f1sh1ng vessel.

Capelin (Mallotus villosus)

research mark et measurea aged vessel

East Green land III 2 746 200

- -

^IV ² ⁷¹⁹ ²⁰⁰

fish

fisr

fish

(5)

l

r-

i

!

l

'

- 5 -

Finland

(V. Sjøblom and R. Parmanne)

No work was carried out on pelagic fish other than that reported to the Baltic Fish Committee.

F R A N C E

(A, MAUCORPS)

Rapport d'activit§ concernant les laboratoires ISTPM de Boulogne, Lorient, La Rochelle.

Echan ti 11 onncge HARENG Region

l

^Saison

IV a l

11 3

IJb l

" ⁴

IVc+VIId l

11 2

11 4

VIa l

VII a 4

SPRAT

Type de poisson

l

ad ul te

"

m§lange adulte mel ange adulte

11

adulte adulte

Nb. d'echantillons Nb. de poissons Bt de

l

recherche March§ t·1esur§s

l

^{dont age}_detennin§

l

l 12 12

2 132 74

X

l

2331 3-13

l 244 62

X 224 80

2 419 41

8 1528 323

X 275 80

3 122

examen ra ei a l

(6)

- 6 - . France (continued) t~AQUEREAU

l

Region Sa i son Type de Nb. d•echantillons

l

Nb. de, poi ssons (trimestre) poisson

Bt. de dont age examen

l

recherche Marche Mesures determine raci al

VI a ler adulte l 224

2 ¹¹ 2 306 61

4 ¹¹ 4 830 40

VII a 2 ¹¹ l 64

3 ¹¹ l 151 37

4 ¹¹ 4 784 48

VIIb l ¹¹ l 227

VIId 2 ¹¹ X 407

3 ¹¹ ^X 1651

l

4 ¹¹ ^X 126

VIIe l ¹¹ 13 2541 96

2 ¹¹ 3 544 87

4 ¹¹ 4 l 549 193

VIIf l ¹¹

l

² ⁴²⁸ ⁷³

3 ¹¹ l 27-1 52

4 ¹¹ l 113

VIIg l ¹¹ 2 151

2 ¹¹ ' ^.i. 135 64

3 ¹¹ 2 432 54

4 ¹¹ 7 1437 102

VIIh l ¹¹ 3 546 38

2 ¹¹ 3 688

4 ¹¹ 2 358 40

VIIj l ¹¹ l 88

2 ¹¹ 4 2 743 80

l

VIIIa-b l ¹¹ X 2x 660 109

l

²

11 X 5x 1350 233

3 ¹¹ ^X 5x 1247 68

l

⁴ ¹¹ ^l

!

^7x ¹⁶⁷⁰ ⁸⁰ ^l

(7)

l

:

7 -

France (continued)

THON I DES

lSTP~l - Nantes

----·- Region Sa i son Type de Orisine echantillon Nb. de poi ssons

poisson

Bt. de

l

recherche. l·larche Hes u res l!arques

l

German (Thunnus ala!unga) l

A~ o res

l

2

l l

X 1184 508

l

VIlj ,k

l

- VIIId,e 3 _l X 527 112

Patudo (Thumnw aiJesus) A~ores

l

²

l l

^X ⁵⁵ ¹⁵

l

L i sta o (Xatsu-wm;:<s peZænis) Ac;ores

l

²

^l l

X

l

⁴³

l l

^l

Germon (Thunnus aZ::.t.Zunga)

CNEXO/COB

Regi on Sa i son Type

l

Nb. d 'echanti l l ons Ub. de poissons

l

^examen

(marche) dont age ra ei a l i·\esures determine Ga l fe de Gascogne Jui ll et juveni l es 2 1300 1300 o

(VIII)

Gol fe de Gascogne A out juveniles 2 2040 2040 o (VIII)

Campagnes Oceanographiques (ISTP11)

Region Dates Objecti fs

IV a, b,c+VIa 9.02 - 8.03 Campagne d' eva l uati on des poi ssons juveniles (Y.F.S.) sous egide CIEI·l IV a 10.07 - 1.08 Campagne d' eva l u a ti on acousti que sur

le hareng (Echo Survey) sous egide CIEfl VII et VIII 12.06 - 7.07 Campagne d' eva l u a ti on d' abondance

des oeufs de maquereaux sous eg i de C I Hl

Il et ILE. Ac;ores mai - juin Campagne de prospecti on thoni ere

et de marquage

'iiij,K- VIIld,e a out - id -

: l

(8)

- 8 -

German Democratic Republic (L.Danke)

Sampling Blue Whit;ing

No. of samples No. of Fish

Area Sea son Type Research C om- Mark et Measured Ag ed Exa-

of vessel mercial min ed

fish vessel radically

S-Norwegian

II+III Mixed - 16 - 3 483 - ^-

Sea II A S-Norwegian -

II Mixed - ^- 8 l 702 200

Sea II A Central-Norw.

III l Mixed - 16 - 3 913 299 -

Sea II A

Central-Norw. III Mixed - - 6 l 265 200 -

Sea II A Central-Norw.

IV Mixed - 5 - l 232 100 -

Sea II A SE-Jan Mayen

III Mixed - 3 - 648 - -

II A

SE-Jan Mayen III Mixed - - 2 389 85 -

II A

SE-Norw- Sea

II Mixed 9 - - 3 929 400 501 )

II A

Norvegian Deep

II Mixed 2 - - 940 100 so1 )

IV A

1) parasitologically

Sampling

~Area

SE-Norw.

II A

Research vessel surveys

Area

Norwegian Sea

Norwegian Deep

Sea son Type of fish

Sea II Mixed

Date

6.5. - 16.5.

2.5. - 4.5.

17.5. - 20.5.

Argentina

Objectives

Acoustic survey, midwater trawling, hydrography Acoustic survey, midwater trawling, hydrography

No. of Samples No. of Fish

Research C om- Mark et Ag ed Measured vessel mercial

vessel

2 - - ⁸⁵

Exa- mi ned racially

(9)

- 9 -

(H.Jorrh2iEl)

Type* N~ of s~~nl~s

Season oi aesearch hlarket

H·?bridec ( 01 )

~:-.-.r-:;ort!: Sea (03) .:..,. of ~::-el.:t:-;.·1.

( 'J j)

30¹~ th 31JG:l!'1.ll

(es) CJ-::r .. tr2~l ~·r0r7.1:.

~)28. (c.~)) ','.' cf I::-el";'ld

( 1 C·) s-:1"0:·-c:-;. 2ea

('12) 3 cf :::.:.'::::l:"ld

( 13) 3rL't(~ ~):1er:;,rl

Pish I I I 3,4;51:'3 I 2.fl.7 IV

I 2;1.,5:æ_

III 23,45~.?/~

IV 24.5.6.78 I

I _12.3

r-,-_~-'- 21

I

I I _2~

n 2!5~I

Cen"t.~ral l~ ort ?l Sea (OS:)

;~·.-:-:lo:rt?J Se.". (03) 3cat:: Bn:::han (:os)

Cent~al llorth Sea (09) 3-~or~h Sea (12) S-~orth ~ea (12)

:r:i of In~laul ( 06)

S of I:relanj (13) 3ristol G:l:_:nn.::-1 (14) neori.::_.::s ( 01) N~ of Ireland (06)

''f of Irdc:nd ( 1 O)

·:;-.: :Ji'Irel'.nd (c.S)

mr + UE-!Torth Sea ( 03/04)

V es sel 4

1 9 5 7

2

31

9

2

Date

0(,01.-19.01.80

01.02.-28.02.80

.~ 2. 09. -o 3. i o. 8 o 15, 11 , -U2. 12. SO 1 o. 12.-~o. 12. so

)Te of F2_2h

Meacured A~ed Exa~ined

racially 312

22 231 195 1956 154 33 2537 274 31.1

1 Of 2.32

22 93 400 137

100

1 OC•

100

GOj ecti Vt"::s Groundfish Survey

193

93 2CC

100

IntcrnatiOE2.l YounG Fish Survey

Groundfish Survey Mackerel (a~ulta, ezcs) and Herring ~urvey

Herring (adults, larvae)

Surve:~r

Pelagic ?is~ Survey Groundfish Survey

(10)

- lO -

Type No of s~ro~les

Season of Research ],Ictr::et

Germany, Federal Republic

._tu of Fis!!

~sasu=ed Aged Exa~ined

r:o.:~ie.llJ

~---~---~---+---+---+---r---

rr

^a ^I

IV b

l

^I

Cent:rEl :·~or-:h III Sea

l

IV

I-rl c I

S-North Sea

TI a l ^I

:r of Irelo.nd VII b,c

l

^I

V;I o:-~r'ebnt IV

I I

"' ^ofIrel3.:".·i IV

l

lesaarch V~ssel Surva~s

;~re a

:_-; o, ^{I'T c}

Ce~~~~l ~ S-:crth Sea

I~/ a, IV -~:, 7_V c

~-,Sentr~l, S-~or~~ Sea

VI ^a ^_; ^e2.' I:-c2.·:n~

VII '::l, c of I~"'-3lr~::l::"!_

7:..I g-k s o i' Irr~le.nd

v:.r b, c o i' Irelcmd

·7=:1 e;·-k ^,. c:' Irel::nd IV h Centrr,.l North SeR.

Samnlin~ Mackerel

Area Ser;; son

VI a I

of Sco:land III IV VII b1 c I

~ of Irel2nd II IV

VII f II

3!'is tol Ch2.nnel

VII g-k II

S of Iral~nd III IV

* Sta~es of maturity

2,31E:,5_,E 2 ,§.

2,2_,~

3,_±,.2,,

6 2 ,§.

2,3,4 4,5,6

1

38 6

7 3

7 2 2 3 5

Date

10.~?.<~.12.80

35 6033 2523 104 279 573 147 1:J4 344 361

Ob,jecti ;·os

Gro~~~fish Survay

~~lte:r·n=.ti .. J::.:::l YourJ.z,· Fi2i1 S•J.:!::ove~r

~ac~~rel (a~ul~s, aggs)

snd ae~ring Survey

Pel~gic Fioh Survey

Grcuniiish Survey

~7o of :?ish Resu.rGh V. I.larket }.leasured Aged

1 570 100

2 212 100

1 2"Q / , 100

3 830 200

3 493 100

1 120 100

605 '100

19 6305 200

1 40 38

3 ¹⁶²

(11)

VI a

VII b,c VII i

VII t;-1:

IV a

VI a VII g-l<

VI a VII b,c VII g-k

Area

;, Df ScoJ~l::i.ad

r::- _{O l ...} IrelL!.nd

3ristol Ch,::.n:'lel

s of Irel2.:1d :f-:To2."th Sea

of ScGtl;"tnd

u '-' of IreL:nd

·:r of Scocl':.nd

..

of Irel.r .. :::ld.

.:; of I:::-e2.cnd

- l l -

Date

13.11. -·.;:~. •J :2.80

Ob.jcctives

;.:~-teker8l ( A,dul ts, 8/.S:.;-s)

and rr~rriag s~rvey

He:::-ring (ad~lts, larvae) Survey

Horse mackerel

TI a

'I o: Scot2.and VII b,c

71 of Ir8lQnd VII f

J:-:..2 te; l 0'.:~.~~!:nel

~.r:: f!-~~

S o::.-. I:r·..:·l -..:-:..1

Se as on IV

rr

IV I l

rv

~.rii b₅c 7IIf 'fli ;·-~:

·:r cf Irel:md

~~:::'~c3 tol C;:Cc11:01Pl

8 c::' I:o.'el·~!td 1 - - ·

Eo of Saru.·cle3 R/7 -

6

2 11

:;)a te

l:c of Fish

lTe~c.Slli''Jd.

39

13.0).-1.~.04.EO ;,:z:tc~·=·::r·:.: (c-..0·.11 :s, ~;_;.;.·~~) and :1e r;·:_::lz Sur"'",•t·~r

:;.11.-02,1?..80

(12)

J:-ra

~{-. ,_;:.:::h Sea V'-, ^A

~'l l: C

R·::''J:':!?~l

:::I I I

I

n:::

I7 I

S of Iro~~~i II

=·=-!

L.T.t

r::

IV Fish

- 12 -

8

'7 l

'

o 1 2 2 1 ^o 9 1 ~

1 ^...,

7 l

23

8 o 1 1

23

1 1

Ar_ cd. Z:{anir_~--cl

Yacially 1 :::1 2:~3

s,:;'

134 271 D 532

~~?57 ):J3

5C·20 1 :2GC 629

3J59 ^e~3

23~.3 1C6 200

17 •':,( 363

26·.f'J 1 c~·

5·97 ^'l^c-~J

63) ':'G-J

-·,

-

^:~

1 1 "~ ^L,.> 1 "i7

r---+---+--- IV=;, =~-Fn:rtl: Sea

'!81 :::n :·-!P. FL:;. t2rcu V::Ls Ro.~;zcc::..~

~r_:.I1^=;--kS of I:::.·9l:··.lld

VIa ~ of Scotla~d

"'"!:=I!-~·-k ~) of Ir.::l~nd

I I I I et

E of Gr~·rmla!td

~nitsb./3ear Is!.

No;·;regian Sea Vb1 F'lr0-9 ?lateau E of 1_;:::--:oenlanct.

VIa. '1 of Jcotl·-r.d

"':r=~c-k u of Ir,oJ.p.nd

v::;;-k s of Irel8.nd

CB,G1.-22.0),8C Pela~ic Fish ani Deep :Sea :ti 3.he:!:';l

i;:aol,erel ( 2.clul ts, e,;;;gs) and IIo!':ritlg Su1.,vey

09,06.-25.07.60 Grou~dfish Survey 20.06.-)IJ,07.GO Grol1:ndfi::;h ::urvey

28.02.-27.10,30 Exploration of neu Fishing Groun:is ~~.rd Sr·"'<::ies

!~errin5 (od.nl ts, l:trv'le) Surve y

13.11.-0~.12.80 PelaEic Fish Jurvey

(13)

Sampling BLUE WHITING

~re a Sea son

s-sw Iceland April

11 Jul y

s Iceland Sept.

11 Nov.

E Iceland June

11 Jul y

11 Aug.

11 Sept.

Dohrn Bank Oct.

Research vessel Surveys

Area Date

Icelandic waters 22 May

- 13 - ICELAND (Jakob Jakobsson)

Type of fish No. of samples

mixed 12

mixed 4

mixed l

juvenile l

mixed 3

adult 8

adult l

adult 5

mixed 3

Objective

No.of fish No.of fish measured agea

1111 352

100 100

95 95

450 450

796

36 36

605 605

300 200

- 10 June Environmental and pel. fish surve y E rceland 14 - 28 June Blue whiting surve y

E-SE Iceland 23 August - 25 Oct. Blue whiting survey and exploratory

Dohrn Bank fishing

Sampling CAPELIN

Type of No.of Samples

No.of Fish No.of Fish No.of Fish

~rea Sea son Research Fish. examined

Fish

vessels vessels measured aged

racially NW-, N- and

NE-Iceland Jan.-Feb. mixed 23 19 4077 2691 350

SE-, s- and

SW Iceland Feb.-Mar. adult 4 15 2564 1600 400

Ice1and -

E-Greenland Aug.-Nov. mixed 25 28 3965 3965 900

Iceland -

E-Green1and August 0-group 140 6950

Research vessel and other surveys

Area Date Objective

w, ^N-Ice1and 6-12 Jan. Cape1in surve y

w, N-Iceland 7-30 Jan. Abundance estimates

NE, SE-Iceland 10-16 Jan. Cape1in survey, hydrography

N, NE, E-Iceland 22 Jan - 8 Feb. Abundance estimates, hydrography

W-Iceland 6-28 Feb. Capelin survey, hydrography

E, SE, S-Iceland 27 Feb. - 8 March Capelin survey

w, N-Iceland 19-31 March Juvenile and immature capelin surve y

Ice1andic waters 22 May - 10 June Environmental and pel. fish survey Ice1and, E-Greenland 6-31 August 0-group, capelin and other spee i es

w, NW, N-Ice1and, E-Greenland 30 Sep. - 23 Oct. Abundance estimates

w, N-Iceland 6-12 Nov. Cape lin survey

(14)

Sampling HERRING

~rea Season

w-, N-, E- and

S-Iceland Jan.-Dec.

E-Iceland Jul.-Dec.

S- and E-Iceland Sep.-Dec.

Research vessel surveys Area

SE-Iceland

w, N-Iceland

w,

^N-Iceland

s, SE, N, W-Iceland SE, E, NE, N-Iceland

Herr ing

Area Sea son

Div. VIa I - XII Div. VIIb I -VIII Div. VIIj I - III, V, Div. VII a VII - X Celtic sea I, II, VIII

Mackerel

Div. VIa IX - XII Div. VIIb I Div. VIIg-k IV, V

J

Div. VIIg-kl I - III

Research Vessel Survey

~ea Time

- 14 -

Type of No.of Samples

No.of Fish No.of Fish No.of Fisr Fish Research

vessels

adults 8

mixed 18

immature 3

Date 4-10 Jan.

16-29 Feb.

12-29 Sept.

12-25 Nov.

27 Nov.-16 Dec.

IRELAND (J, Molloy)

Type of No.

Fish.

measured aged examined

vessels racially

54 5563 5237 5237

5 2851 594 594

- 200 200 200

Objective

Abundance estimates, hydrography

Abundance estimates, immatures, juveniles Abundance estimates, immatures, juveniles Abundance estimates, matures, immatures Abundance estimates, hydrography

of No.of fish No.of fish No.of fish examined Fish samples measured aged

racially

Adult 25 7629 1241 1241

Adult 37 9121 1847 1847

IX, X Adult 19 3361 911 911

Adult 20 5956 1000 1000

- XII Adult 46 5526 2302 2302

l

ÂdultÂdultÂdult ¹¹^l⁵ ⁴²⁸¹¹²⁶⁷⁴⁴ ⁸⁰⁹⁴²²⁵¹⁶

Adult 9 2577 424

Objectives

Celtic Sea I, II, X, XI, XII Herring Larval Survey

Celtiv Sea II, III, IV, VI, VII, IX Mackerell and Sprat Egg Surve y

Irish Sea II Young Herring Survey

(15)

THE NETHERLANDS 1980 Sam-oling data for MACKEREL

Area Quarter

of year

IVb Central North Sea 2

11 11 11 11

3

li 11

" ¹¹ 4 IV c Souther::t North Sea 2

11 11 11 11

3

li 11 11 11

4 VIa N.H. Ireland 2

,, 11 11

3

11 11 11

4 VII South of Ireland 1

11 " ¹¹ ²

11 11 11

3

" ¹¹ ¹¹ ⁴

\Total

- 15 -

THE NETHERLANDS (A. Corten).

No. of samples No. of fish

research mark et measured aged racial

vessels sam:9les invest.

- 1 35 - -

- 17 687 50 -

- 4 160 50 -

- 1'7 651 75 -

- 17 921 50 -

- 7 423 150 -

- 7 383 175 -

- 2 176 75 -

- 7 340 235 -

- 20 1 ,711 450 -

- 18 1 '160 375 -

- 14 1,676 325 -

- 13 1 ,955 300 -

- ¹⁴⁴ 10,273 2,310

l

(16)

- 16 - Netherlands (cont.)

Area Quarter 'rype No. of samples No. of fish

of of - - - - -

year fish reseo.rd1 ^vessel ^marl~et I!h"'l:',l~l·ed aged

exa~ned

^rac1ally

l

01 Hehrides 2 aduJ.ts - 1 162 50 -

03 N.H. North Sea 1 ¹¹ 1 - 129 50 -

11 il 11 11

3 ^il 6 -- ^511~ ²⁹⁴ -

o6 N.V/. o.f Ireland l ¹¹ - 1 139 50 -

11 11 il 11

2 ¹¹ - .'3 371 150 -

11 11 11 11

3 ¹¹ - 3 ²⁸⁶ ¹⁵⁰ -

11 11 11 11 4 ¹¹ - ⁰ 295 100 -

09 Central North Sea "-^•)

11 4 - t.h5 200 -

10 Hest of Ire land 2 ¹¹ - 1 106 50 -

11

"

¹¹ ¹¹ ³ ¹¹ ^- ¹ ⁹⁰ ⁵⁰ ^-

12 Southern North Sea 1 ¹¹ - ^1:1' 1P.7 50 -

11 11 11 11 4 ¹¹ - ti 888 300 ^-·

13 South of Ireland 1 ¹¹ - ¹ ¹¹² ⁵⁰ -

11 11 11 11

3 ¹¹ - ^l~ ⁴⁰⁵ ²⁰⁰ ^-

11 11 11 11 4 ¹¹ - l 121 50 -

n~ Bristol Channel 1 ¹¹ - ^~) ^=~it() ¹⁰⁰ -

15 West Clwnnel 1 ¹¹ - ¹ ¹¹¹⁷ 50 -

11 11 11 11

2 ¹¹ - 1 !!19 50 -

11

"

^" ¹¹ ^!1 ¹¹ ^- ^l ^9B ⁵⁰ ^-

Total 11 30 5 'l f\4 ²oh!, -

'11. From a Danish ca tell landed in the NetherJ.ands.

Research vessei surveys

Area Dat es Oojecti ves

IVc, VIId Southern North Sea 07/01-10/01 ICES herring larval survey IV a, o, c North Sea 04/02-08/03 ICES Y o ung Fish Survey

IV c Southern North Sea 03/03-19/04 Monitoring infhL'X o-gro up herring IV a Northern North Sea 07/07-19/07 ICES Echo sur1ey

IV a ¹¹ ¹¹ ¹¹ 03/09-11/09 ICES herring larval survey IVb Central North Sea 15/09-01/10 ¹¹ ¹¹ ¹¹ ¹¹

VIa Hest Scotlar,d 10/10-20/10 ¹¹ ¹¹ ¹¹ ¹¹

IV c, VIId Southern North Sea 16/12-19/12

11 11 11 11

(17)

- 17 -

NORWAY

(J. Hamre, O.J. Østvedt) Herring (Clupea harengus)

North of 62°N SAMPLING

Type of No. of Samples

Area Season Fish Research

Vessel Market

Bar.Sea I Adult l

I III Juvenile 6

Norw.coast I Mixed 21

IIa II ¹¹ lO

III ¹¹ 20

IV ¹¹ 21 20

Norw.Sea,

northern III Juvenile 4

IIb

Total 84 20

x)Mostly herring larvae

RESEARCH VESSEL SURVEYS

Area Date

Norwegian coast 62°N - 69°N

January-March Norwegian coast

62°N - 70°N

April-May Norwegian coast

62°N - 67°N

April-May

Barents Sea/ August

Norwegian Sea Norwegian coast 62°N - 69°N

August

No~wegian0^coast Sept.-october

62 N - 69 N

Norwegian coast Nov.-Decernber 62°N - 71°N

TAGG ING

Sea son Type of Tags No.

!Norw.coast II Internal

IIa III ¹¹

No. of Fish No. of Fish No. of Fish

racially

22 20

14

1653 1531 2000

586 506

1269 1207 1500 x)

4707 2628 2800

9

8260 5892 6300

Objectives Spawning migrations, experimental fishing Distribution herr ing larvae Tagging

Distribution 0-group herring Distribution. Tagg ing Sampling cornrnercial fishery, experimental fishing 0-group surve y

of Tagged Type of Fish Recoveries

35 982 adult 153

10 875 ¹¹

(18)

- 18 -

Herring (contd) North Sea, Skagerrak

Type of No. of Samples Area Sea son Fish Research

vessel Market

Central I Immature 11 -

North Sea

IVb IV ^Il 5 -

Northern II Imm./Ad. 7 -

North Sea III ^Il 7 6

I Va IV ^Il lO -

Skagerrak I Imm./Ad. 3 6

II Adult - l

IIIa III Imm./Ad. - 11

IV Imm. 9

Area Date

North Sea, IV January-February North Sea, IV October

Skagerrak-(IIIa) November Norw.west coast fj?rds

TAGG ING

Area Sea son Type of Tags No.

Norw.Skagerrak

coast(IIIa) September Int. steel

Norway

No. of Fish No. of Fish No. of Fish

racially

778 294 80

435 367 355

596 596 198

919 900 595

596 590 574

818 810 730

100 100 100

644 630 640

900 845 840

Objectives

Int. young fish survey, herr ing Intern, herring larvae investigations Fish survey, 0-group herring

of Tagged Type of Fish

500 Herr ing

Il Il Ext. Flo y 1850 ^Il

Sprat (Sprattus sprattus) SAMPLING

Type of No. of Samples No. of Fish No. of Fish

Area Season Fish Research measured aged

Vessel Mark et

Central I Adult 3 34 4000 600

North Sea

IVb IV ^Il 4 132 13100 850

South I ^Il - 49 5300 300

North Sea

IV c IV ^Il - l 100 -

Skagerrak I ^Il l - 100

IV ^Il - 4 400

(19)

- 19 -

Norway RESEARCH VESSEL SURVEYS

Area Date Objectives

North Sea,, IV January Acoustic survey, sprat North Sea~Skagerrak-

Kattegat (IV-IIIa) March/April Acoustic survey, 1-group sprat North Sea-Skagerrak

(IV-IIIa) November Acoustic survey, 0-group sprat

Norwegian west coast

fjords November Acoustic survey sprat

Cape lin (Mallotus villosus) SAMPLING

Type of No. of Samples No. of Fish No. of Fish

Area Sea son Fish Research measured aged

Vessel Market

Barents I Mixed 46 1364 143537 3081

Sea II ^fl 15 lO 2292 822

I III ^fl 190 17 19024 6540

IV ^fl l 59

Norw.coast I ^fl 19 685 73299 2638

IIa II ^fl 2 26 2950 177

III ^fl 26 l 2004 50

IV ^fl 6 520 160

Norw.Sea, I ^fl 6 278 266

Jan Mayen III ^fl 17 64 6914 326

IIa

Norw.Sea, I ^fl 11 1050 596

northern II ^fl 6 600 295

IIb III ^fl 52 696 74197 1655

IV ^fl 7 147 15676 739

Jan Mayen, III ^fl 19 1388 310

Iceland, va IV ^fl 16 1512 952

Jan Mayen; III ^fl 12 112 12273 678

Greenland

XIV a IV ^fl 15 1057 553

Iceland IV ^fl 6 350 350

Greenland XIVb

'~'o tal 472 3122 358980 20188

Area Date Objectives

Barents Sea January Distribution, spawning migrations

Jan Mayen February Distribution

Barents Sea,

Finnmark coast March Spawning capelin

Finnmark coast April Distribution of spawning grounds Barents Sea June-July Distribution of larvae.

Investigations of older capelin in August-Septx)

summer feeding areas

~arents Sea 0-group survey. Distribution and

abundance of older capelin Jan Mayen-Iceland October Distribution and abundance x)Two vessels